Central Bureau for Astronomical Telegrams

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IAUC 8314: P/2004 CB; 2004ba, 2004bb

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                                                  Circular No. 8314
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET P/2004 CB (LINEAR)
     An apparently asteroidal object discovered by the LINEAR
project (discovery observation below from MPEC 2004-C16 and MPS
98921) has been found to show a narrow 1'.1 tail in p.a. 274 deg
(slightly expanding toward the end) on CCD images obtained by R. H.
McNaught with the 1.0-m f/8 reflector at Siding Spring on Mar. 30.8
UT.  Following a request by the Central Bureau, M. Kocer reports
that CCD frames taken at Klet on Mar. 31.145 also show a narrow
tail about 90" long in p.a. approximately 280 deg.

     2004 UT             R.A. (2000) Decl.       Mag.
     Feb.  3.40369   14 24 23.21   +43 34 21.8   18.1

McNaught's astrometry, the following orbital elements, and an
ephemeris appear on MPEC 2004-F96.

                    Epoch = 2004 Mar. 16.0 TT
     T = 2004 Apr.  2.1633 TT         Peri. = 149.6558
     e = 0.689400                     Node  =  66.4875  2000.0
     q = 0.912180 AU                  Incl. =  19.1472
       a =  2.936829 AU    n = 0.1958331    P =   5.033 years


SUPERNOVAE 2004ba AND 2004bb
     D. Norman, Cerro Tololo Interamerican Observatory (CTIO); G.
Squires, Space Infrared Telescope Facility, California Institute of
Technology; J. Kubo, Brown University; and A. Becker, University of
Washington, on behalf of the 'Deep Lens Survey' team, report the
detection of three possible supernovae in R and (subsequent) V-band
images taken with the CTIO 4-m reflector (+ MOSAIC imager).  The
two objects with apparent hosts are tabulated below.

SN       2004  UT        R.A. (2000.0) Decl.      R     Offset
2004ba   Mar. 20.299  13 56 56.54  -11 25 39.9   22.9   0".6 W, 1".6 N
2004bb   Mar. 20.240  13 57 10.47  -11 03 19.5   21.7   4".0 E, 0".7 N

Additional magnitudes:  2004ba, 2003 Apr. 2 UT, R [25.3; 2004 Mar.
23.255, V = 22.4.  2004bb, 2003 Apr. 2, R [25.3; 2004 Jan. 18, V
[25.4; Mar. 24.181, V = 22.1.  The third transient, with no visible
galaxy nearby, is located at R.A. = 13h55m31s.91, Decl. =
-11o50'57".2; available magnitudes:  2003 Apr. 2, R [25.3; 2004
Mar. 20.299, R = 23.0; 23.255, V = 23.0.

                      (C) Copyright 2004 CBAT
2004 March 31                  (8314)            Daniel W. E. Green

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